P0307high severityPowertrain
Cylinder 7 Misfire Detected
on 2008 Mazda MX-5 Miata 2.0L I4 · RWD
What this code means
Misfire detected in cylinder 7.
Symptoms
- Check Engine Light
- Rough idle
- Loss of power
Common causes
- Worn spark plug #7
- Faulty ignition coil #7
- Faulty injector #7
- Low compression
Diagnostic steps
- Swap coil #7
- Inspect plug #7
- Test injector #7
- Check compression
Repair notes
Swap coil to diagnose.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1